WE Report

Lessons Learned

Lessons Learned865


Operator Rig Discipline / Origin Project Phase Well Section Date What Happened

PGNiG
269 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S
Shrek
N/A 02/09/2019
The project was quite unorganized with a lot of revisions and outdated info provided to the . . .


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PGNiG
268 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S
Shrek
N/A 26/08/2019
Poor communication between NOV and Halliburton regarding delivery of crucial elements (9 1/2″ . . .


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PGNiG
332 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S, 6507/5-9 A
Shrek
Planning 29/07/2019 In order to ensure compliance with NORSOK, a verification of the conductor analysis was done by DNV . . .


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DNO
1117 – DNO

Island Innovator Drilling
PSA Q&A
Planning 6507/7-16 S
Canela
N/A 23/07/2019

Kopi av rapport om Casing Design for brønn 6507/7-16 S Canela/ Drilling Basis of Well Design Rev 00 . . .

Karina Helle / Morten Laget


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PGNiG
266 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S
Shrek
N/A 25/06/2019 The team decided to use a Excel based well delivery plan.


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PGNiG
267 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S
Shrek
N/A 25/06/2019 It was decided to involve a operational planner from Odfjell in the Shrek project to help out with . . .


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PGNiG
330 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S, 6507/5-9 A
Shrek
Planning 25/06/2019 The team decided to use a Excel based well delivery plan.


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PGNiG
331 – PGNiG

Deepsea Nordkapp Drilling Planning 6507/5-9 S, 6507/5-9 A
Shrek
Planning 25/06/2019 It was decided to involve a operational planner from Odfjell in the Shrek project to help out with . . .


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Wellesley
206 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 Unable to release CRTi tool after using it for the first time (above). Spent 30 min. And called . . .


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Wellesley
207 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 AxeBlade Bit performed well, did not create stick-slip.


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Wellesley
208 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 The Halliburton BSS “skip & ship” system worked very well. There was no problem handling60 m/hr . . .


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Wellesley
209 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019


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Wellesley
210 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 Problems experienced with poor quality of pre-doped connections. Remains of rusty water and storage . . .


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Wellesley
211 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 The pump strokes and volume pumped (from pit sensors) matched very well from 0-83 m3 mud pumped . . .


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Wellesley
212 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 All 3 wiper plug shears & burst were clearly seen during this cement job; bottom plug shear, top . . .


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Wellesley
213 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Production section 07/02/2019 Trip sheet from Geoservice and Transocean has shown different numbers. In addition, gains have been . . .


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Wellesley
214 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Reservoir section 07/02/2019 Investigated two sensor systems in TT.


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Wellesley
215 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Reservoir section 07/02/2019


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Wellesley
216 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Reservoir section 07/02/2019 After POOH with 8 1/2″ BHA (prior to coring), decided to not run same due to wear on teeth coating. . . .


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Wellesley
217 – Wellesley

Transocean Arctic Drilling Operational 35/12-6 S
Kallåsen
Reservoir section 07/02/2019 Junk was found in core barrel (piece of coiled copper plated spring steel). Possibly a piece of . . .


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